Zachariahc Posted March 27, 2017 Share Posted March 27, 2017 So when I was cleaning my MAF a week or two ago. It was pretty dark outside and I thought it might have looked a little weird. Fast forward two weeks and I pulled it again in the light and it looked melted. I've replaced it now. But. Has anyone seen one like this? There's parts that look like they got hot enough to almost drip! http://i1146.photobucket.com/albums/o538/zachariahcrowell/20170326_103026_zpseqhenoaw.jpg http://i1146.photobucket.com/albums/o538/zachariahcrowell/20170326_103034_zpsfedrshqj.jpg http://i1146.photobucket.com/albums/o538/zachariahcrowell/20170326_103046_zpsipfrfp1y.jpg Link to comment Share on other sites More sharing options...
Max Capacity Posted March 27, 2017 Share Posted March 27, 2017 Nope, this is the first I've seen something like that. Somebody give that guy a cookie. You win. I wonder how that could happen and not cause anything wrong. What's the intake tube look like ? 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Zachariahc Posted March 27, 2017 Author Share Posted March 27, 2017 Max, That's the weird part. Everything else seems to be in order. I'm going to check it all out a little more thoroughly. Hoping this helps with fuel trims and tuning. Link to comment Share on other sites More sharing options...
Infosecdad Posted March 27, 2017 Share Posted March 27, 2017 What did you clean it with in the past? Only thing I can think of is a "cleaner" that ate away at it. I can't imagine the intake air getting that hot. Link to comment Share on other sites More sharing options...
Zachariahc Posted March 27, 2017 Author Share Posted March 27, 2017 Did you clean it in the recent past? Only thing I can think of is a "cleaner" that ate away at it. I can't imagine the intake air getting that hot. I cleaned it recently and let it dry thoroughly but remembered it looking...weird? I'm not too familiar with how these ones are "suppose" to look. Glad I changed it. I can't imagine the intake air being that hot either. Maybe it was shorted. Water damaged. Tossed in by a previous owner just to make it run? Link to comment Share on other sites More sharing options...
Zachariahc Posted March 27, 2017 Author Share Posted March 27, 2017 Oh and I cleaned it with CRC MAF cleaner. That's it. And I'm like 99% sure it looked like this before I cleaned it. Link to comment Share on other sites More sharing options...
Infosecdad Posted March 28, 2017 Share Posted March 28, 2017 That sounds right for the CRC MAF cleaner, how long have you had it? The previous owner might have cooked it. I've seen people try to use brake cleaner or similar on MAF before. Link to comment Share on other sites More sharing options...
08SpecB_DE Posted March 28, 2017 Share Posted March 28, 2017 What did you clean it with in the past? Only thing I can think of is a "cleaner" that ate away at it. I can't imagine the intake air getting that hot. I was thinking the same thing. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted March 28, 2017 Share Posted March 28, 2017 Yeah. It is a first for me too. Never seen this before Link to comment Share on other sites More sharing options...
Zachariahc Posted March 28, 2017 Author Share Posted March 28, 2017 Well it shall remain a mystery then! Unfortunately I don't have too much background on the car. Bought it pretty cheap to fix up and the only paperwork in it was for routine maintenance it looks like. About a week after I bought it. It blew up whilst limping it a couple miles back home. I've replaced A LOT of things on the car so I'm not too terribly surprised at this. After pulling the heads off I found burnt valves. Maybe bad fueling due to the MAF being in this condition was a contributing factor? Link to comment Share on other sites More sharing options...
xt2005bonbon Posted March 28, 2017 Share Posted March 28, 2017 About a week after I bought it. It blew up whilst limping it a couple miles back home. Man, how many times do I read this on this forum? Sad . That's why I recall when I bought my 06 a couple of years ago, I was a bit scared cause it was a stage 2 car sold at an Audi dealership . BUT, I brought my laptop with me, asked the dealer if it was OK to plug it to the car to do some diagnosis . I ran romraider and stuff. Everything checked out fine. So I bit the bullet and bought it! Link to comment Share on other sites More sharing options...
Zachariahc Posted March 28, 2017 Author Share Posted March 28, 2017 Man, how many times do I read this on this forum? Sad . That's why I recall when I bought my 06 a couple of years ago, I was a bit scared cause it was a stage 2 car sold at an Audi dealership . BUT, I brought my laptop with me, asked the dealer if it was OK to plug it to the car to do some diagnosis . I ran romraider and stuff. Everything checked out fine. So I bit the bullet and bought it! Haha I know! I should have done some homework. But. I did buy it for more of a project than anything. And boy what a project it has been. But I'm hoping now with the rebuild done it'll treat me right if I treat it right in return. All I had was a code scanner. It had two misfires and coming from N/A subarus. I thought. Yeah I can handle this. Well. A month later and a full rebuild later. I handled it haha. I'd really like to get into the romraider/tuning side in the future. Until then, I've been working with Dave at cryotune trying to get everything all sorted out. Really hoping the MAF had a lot to do with fuel trim issues. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted March 28, 2017 Share Posted March 28, 2017 good on you. I can't recall. do you have an accessport or the btssm app? Link to comment Share on other sites More sharing options...
Zachariahc Posted March 28, 2017 Author Share Posted March 28, 2017 Right now I have the V2 AP just for an easy way to get it tuned. Everytime I log and get back home I just sit and Google and read for hours about what it all means. It's very interesting to me. I just didn't think my brain could take diving straight into tuning after my first rebuild haha. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted March 28, 2017 Share Posted March 28, 2017 I see. Then use that AP to always keep an eye on your fuel trims, pull LV on regular basis, make sure you are free of knock especially at high load, then you should be good to go. Link to comment Share on other sites More sharing options...
Zachariahc Posted March 28, 2017 Author Share Posted March 28, 2017 Thanks for the advice. Now. What exactly is learning view? Watching it live or data logging and then looking at it on the computer? I've been seeing knock increase by 1 at what looks like 1000-1200 rpm. Nothing in the fine knock column. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted March 28, 2017 Share Posted March 28, 2017 Here is a good read from those who created 'learning view'. http://www.romraider.com/forum/topic5371.html The learning view essentially gives you a quick summary of your fuel trims (i.e. running too lean or too rich), and tells you if you're knocking in certain circumstances. But read that link above and you will learn a lot. I am not sure if the AP can pull an LV on the fly. I think it does. The btssm app does it right on your phone/tablet . Link to comment Share on other sites More sharing options...
Zachariahc Posted March 28, 2017 Author Share Posted March 28, 2017 Awesome! I'll be doing some reading tonight. I'll also be looking into the btssm deal as well. Or just a tactrix cable. But no wires sounds fun! Link to comment Share on other sites More sharing options...
GTEASER Posted March 28, 2017 Share Posted March 28, 2017 This is highly bizzare. GTEASER's 2012 Legacy GT - Sold GTEASER's 2009 XTeaser - Sold GTEASER's 1992 Legacy SS - Sold Link to comment Share on other sites More sharing options...
BDII Posted March 28, 2017 Share Posted March 28, 2017 Previous owner had CAI. Did not keep stock parts. Took off CAI and bought junkyard parts. MAF came off car fire salvage. Need forum help? Private Message legGTLT Link to comment Share on other sites More sharing options...
Zachariahc Posted March 28, 2017 Author Share Posted March 28, 2017 Previous owner had CAI. Did not keep stock parts. Took off CAI and bought junkyard parts. MAF came off car fire salvage. That actually makes a lot of sense. Or the person I picked it up from tried switching the MAF with a junkyard sensor from a car that was indeed running CAI/car fire salvage to try and fix the misfire CEL and rough running. Either way. New motor. New MAF. Hoping it clears some things up in the future and I appreciate the insight. Link to comment Share on other sites More sharing options...
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